Controller and Gateway Partition Placement in SDN-Enabled Integrated Satellite-Terrestrial Network

Yang, Kongzhe; Zhang, Bangning

doi:10.1109/iccw.2019.8756884

Cited by 9 publications

(7 citation statements)

References 16 publications

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“…• Orbit inclination and ISL connecting mode limit: In the space segment, SGs in South Africa are (7,3) and (6,4), whereas SGs in Australia are (6,12) and (7,12; here, the other four SGs in descending orbits are not considered). For satellite (1,10), although it is geographically close to South Africa, H reaching (6,12) in Australia is the minimum. Due to the fixed ISL connecting mode and lower inclination, satellite (1,10) cannot take a shortcut to reach SG (6,4).…”

Section: Isl Hop-count Distributionmentioning

confidence: 94%

“…Cao et al 22,23 studied the gateway placement problem with satellite links capacity constraint in the space‐ground integrated network and compared the performances of different algorithms. Furthermore, Yang et al 10 and Liu et al 24 studied the joint controller and gateway placement problem in software‐defined network (SDN)‐enabled integrated satellite‐terrestrial network. The aim is to find the optimal layout, that is, a combination of k gateways from n candidate points, with minimal latency and maximal network reliability.…”

Section: Related Researchmentioning

confidence: 99%

“…Most newly proposed systems adopt an integrated space‐terrestrial mode 9 rather than an independent working mode to cooperate with the rapidly developing terrestrial networks. In the integrated space‐terrestrial networks, all data traffic transmissions between satellites and ground servers shall pass through gateways which function as the bridge connecting space and terrestrial segments 10 . The feeder link capacity greatly affects the system capacity, and gateway number and placement also have a direct influence on the system performance.…”

Section: Introductionmentioning

confidence: 99%

“…In the integrated space-terrestrial networks, all data traffic transmissions between satellites and ground servers shall pass through gateways which function as the bridge connecting space and terrestrial segments. 10 The feeder link capacity greatly affects the system capacity, and gateway number and placement also have a direct influence on the system performance.…”

mentioning

confidence: 99%

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Multiple gateway placement in large‐scale constellation networks with inter‐satellite links

Chen

Yang

Liu

et al. 2020

Satell Commun Network

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Multiple gateways are required in large satellite constellation networks (LSCNs) with inter-satellite links (ISLs), and their placement may greatly affect the system performance. Gateway placement can be optimized to achieve better network performance under the non-uniform ground demand distribution. This paper formulates a gateway placement optimization model for LSCN with ISLs, aiming at achieving an optimal overall performance including delay, traffic peak, and load balance. The constraints of potential gateway location, gateway-satellite connectivity, and max hop-count are considered. A genetic algorithm (GA)-based method is proposed to solve the integer optimization problem with the help of quasi-evenly distributed reference layout. A Starlink-like constellation with ISLs is adopted in the simulation. The simulation results show that the optimized layout has better performance than the reference layout. Additionally, the locations with high user demand or at the middle of ocean are preferred by gateways. The network performance is jointly influenced by gateway placement, demand distribution, constellation configuration, node, and link capacities. The abnormally high ISL hop-count is found in the south Indian Ocean, which is caused by constellation and ISL configuration.

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Section: Isl Hop-count Distributionmentioning

confidence: 94%

Section: Related Researchmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Multiple gateway placement in large‐scale constellation networks with inter‐satellite links

Chen

Yang

Liu

et al. 2020

Satell Commun Network

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“…When Liu et al [19] proposed the gateway placement problem in SDN-enabled 5G-satellite integrated networks, their objective was the network latency, for which they used an approximate method based on simulated annealing to solve the problem. Yang et al [20] proposed a 𝑘-means method to solve the joint placement problem of controllers and gateways. In a word, the optimization methods above are worth learning, but their gateway placement models seem to be a little simple.…”

Section: A Gateway Placementmentioning

confidence: 99%

Gateway Placement Optimization in LEO Satellite Networks Based on Traffic Estimation

Guo

Rivera

Sallent

et al. 2021

IEEE Trans. Veh. Technol.

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Using satellite constellations to provide global Internet access services has recently drawn increasing attention. A low-Earth orbit (LEO) satellite network with multiple satellites provides global coverage, low latency, and operates independently, by which it effectively complements terrestrial IP networks. Satellite gateways are located on the ground and can serve as data exchange points between satellite networks and the Internet. As the placement scheme can affect network performance, finding appropriate sites for gateways constitutes a fundamental problem. This paper proposes a gateway placement optimization (GPO) method for LEO satellite networks in order to solve this problem by modeling it as a combination optimization problem. We aim to identify the best gateway locations that can balance traffic loads while using as few gateways as possible. The constraints to be satisfied concern the physical links between gateways and satellites: specifically, link interference, satellite bandwidth, and number of satellite antennas. We use a gravity model to estimate the traffic matrix from/to gateways and satellites, then we adopt and modify the discrete particle swarm optimization (PSO) algorithm to solve this problem. Finally, we apply the GPO method to numerical tests on real satellite constellations. The results indicate that our method performs well and effectively.

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A Reliability-Amended-Based Controller Placement Method for LEO Satellite Networks

Wei,

Dong,

et al. 2024

Communications in Computer and Information Science

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Controller and Gateway Partition Placement in SDN-Enabled Integrated Satellite-Terrestrial Network

Cited by 9 publications

References 16 publications

Multiple gateway placement in large‐scale constellation networks with inter‐satellite links

Multiple gateway placement in large‐scale constellation networks with inter‐satellite links

Gateway Placement Optimization in LEO Satellite Networks Based on Traffic Estimation

A Reliability-Amended-Based Controller Placement Method for LEO Satellite Networks

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